<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
      <div class="title-container">
        <h3 class="title">图书系统</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input id="account" ref="username" v-model="loginForm.username" placeholder="Username" name="username"
          type="text" tabindex="1" auto-complete="on"/>
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input id="psw" :key="passwordType" ref="password" v-model="loginForm.password" :type="passwordType" placeholder="Password"
          name="password" tabindex="2" auto-complete="on" @keyup.enter.native="handleLogin"/>
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"/>
        </span>
      </el-form-item>

      <el-button id="login_btn" :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">登录</el-button>
    </el-form>
    <div class="info" style="bottom: 40px;">Beta: 1.0</div>
    <div class="info">Technical Support: RKC</div>
  </div>
</template>

<script>
import md5 from "js-md5";
export default {
  name: "Login",
  data() {
    const validateUsername = (rule, value, callback) => {
      if (value.length < 3) {
        callback(new Error("Please enter the correct user name"));
      } else {
        callback();
      }
    };
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error("The password can not be less than 6 digits"));
      } else {
        callback();
      }
    };
    return {
      loginForm: {
        username: "224375",
        password: "123456"
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", validator: validateUsername }
        ],
        password: [
          { required: true, trigger: "blur", validator: validatePassword }
        ]
      },
      loading: false,
      passwordType: "password",
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === "password") {
        this.passwordType = "";
      } else {
        this.passwordType = "password";
      }
      this.$nextTick(() => {
        this.$refs.password.focus();
      });
    },

    //登录按钮
    async handleLogin() {
      this.loading = true;
      try {
        const result = await this.$http.post("/user-server/api/v1/adminAccount/pub/login", {
            username: this.loginForm.username,
            password: this.loginForm.password
          }
        );
        console.log(result);
        if (result.code === 1) {
          this.$store.commit("user/setToken", result.data.token);
          window.localStorage.setItem("token", result.data.token);
          this.$store.commit("user/setUsername", result.data.account.username);
          window.localStorage.setItem("username", result.data.account.username);
          if (this.$route.query.redirect) {
            this.$router.replace({ path: this.$route.query.redirect });
          } else {
            this.$router.replace({ path: "/home/books" });
          }
          this.$message({
            message: result.message,
            type: "success"
          });
        } else {
          this.$message.error(result.message);
        }
        this.loading = false;
      } catch (err) {
        console.log(err);
        this.loading = false;
      }
    }
  }
};
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */
.info {
  position: fixed;
  bottom: 20px;
  width: 100%;
  text-align: center;
  color: gainsboro;
}
$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
